Brian Krebs at the Washington Post reports that "Google's free services are being heavily exploited by spammers to redirect visitors to sites touting knockoff designer drugs and scams, according to the latest rankings from Spamhaus.org, a group that tracks unsolicited commercial e-mail.

"Last month, Security Fix called attention to Microsoft's persistent ranking on Spamhaus's running list of the "Top 10 Worst Spam Service ISPs". Now that Microsoft has cleaned up its act, it appears the bad guys are moving on to Google, which is now ranked #4 on the list (#1 being the worst).